LOW PRESSURE SWITCH — PROTECTS YOUR A/C FROM LOW REFRIGERANT DAMAGE
LOW PRESSURE SWITCH — PROTECTS YOUR A/C FROM LOW REFRIGERANT DAMAGE
Your A/C low pressure switch is a key safety device that shuts the system down when refrigerant pressure drops too low—helping prevent serious damage.
✔ Protects the compressor from running dry
✔ Prevents coil freezing
✔ Avoids costly repairs
✔ Helps maintain proper system operation
✔ Extends equipment life
⚠️ If this switch trips, it’s usually a sign of a real issue—not something to bypass.
Common causes:
• Low refrigerant (possible leak)
• Dirty evaporator coil
• Restricted airflow (dirty filter)
• Blower motor issues
• Metering device problems
Warning signs:
• A/C not turning on
• Weak or no cooling
• Ice buildup on lines or coil
• System shutting off unexpectedly
• Short cycling
Ignoring low pressure problems can lead to compressor failure and expensive repairs.
Regular maintenance helps catch these issues early and keeps your system running safely.
Protect your system—don’t ignore low pressure warnings. ❄️
Uptown Heating and Air Conditioning
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